A key legal linchpin for the National Security Agency’s vast Internet surveillance program is scheduled to disappear in under 90 days. Section 702 of FISA—enacted in 2008 with little public awareness about the scope and power of the NSA’s surveillance of the Internet—supposedly directs the NSA’s powerful surveillance apparatus toward legitimate foreign intelligence targets overseas. Instead, the surveillance has been turned back on us. Despite repeated inquiries from Congress, the NSA has yet to publicly disclose how many Americans are impacted by this surveillance.